The following is an approximate comparison of commonly used roofing materials in the United States and Canada. The comparison is between asphalt shingles (specifically Architectural shingles), concrete/clay tile, wood shake, and steel roofing products. This comparison will be looking at seven variables; namely, weight by square feet, fire resistance, Wind warranty, impact resistance from hail, snow/ice, and environmental impact.
Architectural shingles are 2.5 to 4 pounds a square feet. Clay tiles are the heaviest being 6 to 15 pounds per square feet. Wood shake are very light at an average of 1.5 to 2 pounds per square feet. Steel roofing products are the lightest in weight at an average of 1.25 to 1.5 pounds per square feet.
When it comes to fire resistance clay and steel roofing systems are rated Class A. Architectural shingles are rated class b in general unless there is a fiberglass mat; then it is generally Class A. Wood shake, as the name indicates is prone to fire; however, it can be of Class c, Class b or Class A. To get Class A rated the wood shake has to be treated and specific underlayment has to be used.
Concrete or Clay tiles generally do not cover any wind warranty nor do wood shakes. Architectural shingles cover on average from 60 to 110 miles per hour. There many be in most cases a time period for which the warranty stands when it comes to shingles. Steel roofing products generally cover 110 to 120 miles per hour.
When it comes to hail concrete and clay tiles can get damaged quite a lot. Tiles can crack easily. Shingles can be bought from a range of class 1 to class 4. Wood shake also range from class 2 to class 4. Steel comes in Class 4. When it comes to hail, steel is the best option if all things are considered equal.
Wood shake and concrete or clay tile roofing systems will absorb water. Tiles will absorb as much as 15%. So when it comes to snow and ice (freezing temperatures and thaw). Shingles and steel are freeze and thaw resistant materials.
Only steel comes a true lifetime warranty when compared to other roofing systems. The other roofing systems come when a wide range of warranties, anywhere from 25 to a limited lifetime warranty. Also when it comes to the environmental impact steel has the most recycle materials, up to 35%. it has long use cycle, and end of cycle recyclability, wood shake can be used as renewable energy. However shingles and tiles have very limited recycling use.
Need further discussion or consultation about this topic? DFW Best Roofing is your trusted roofing consultant.